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SYSTEM FUNCTIONS 

MODE BUTTON

The unit can be set to five different operating modes: HEAT, COOL, DRY, FAN ONLY and AUTO. 

NOTE:

AUTO MODE has fixed setpoints of 68° F heating and 77° F cooling, which are 

not adjustable. The system will automatically select heating or cooling to maintain room 
temperature within this band.

SLEEP MODE

The unit will automatically adjust room temperature during your sleep time. This slight change 
in temperature will not affect your comfort level due to the natural effects that sleeping has on
the body, but it will save on energy consumption and will lower electric bills.

X-FAN MODE

When operating in humid areas, the X-fan or Dry Coil function allows the indoor fan to run for 
a pre-determined amount of time after the unit is turned off (cooling or dry modes) to ensure
that additional moisture is removed from coil. 

FAHRENHEIT °F / CELSIUS °C

The remote controller can be set to display in either °F or °C.

SELF-DIAGNOSIS

With an on-board computer using real-time diagnostics, the Gree U-Match system helps to 
prolong its own life. The automatic diagnosis feature continuously scans for unacceptable 
operating conditions or malfunctions. If such conditions occur, the system takes corrective action
or stops. Error codes are shown on the unit display to facilitate easy troubleshooting and repair.

PRIVACY LOCK MODE

The wireless remote controller has a Privacy Lock. The Privacy Lock averts unauthorized access 
or tampering with system settings.

AGENCY LISTINGS

All systems are listed with AHRI (Air conditioning, Heating, and Refrigeration Institute) and are
ETL certified per UL Standards.

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Summary of Contents for UMatch UMAT18HP230V1AC

Page 1: ...UAL Models Indoor Unit Outdoor Unit UMAT18HP230V1AC UMAT18HP230V1AO UMAT24HP230V1AC UMAT24HP230V1AO UMAT30HP230V1AC UMAT30HP230V1AO UMAT36HP230V1AC UMAT36HP230V1AO UMAT42HP230V1AC UMAT42HP230V1AO UMAT...

Page 2: ...9 20 Energy Saving Tips 21 Warranty Back Thank you for choosing a Ceiling Cassette Air Conditioning Heating System You can feel confident in your selection because the same pride in craftsmanship and...

Page 3: ...he surface of any room s drop ceiling Features include a highly effective inverter driven variable speed compressor 4 way air discharge multi speed fan swing louver and a cleanable air filter Gree s c...

Page 4: ...Indoor unit Outdoor unit 3 NOMENCLATURE Example UMAT18HP230V1AC Example UMAT18HP230V1AO...

Page 5: ...l injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal inju...

Page 6: ...ately 7 Remote Controller 8 Service Cover 9 Communication Cable 10 Front Panel 11 Outdoor Power Supply 12 Liquid Pipe 13 Gas Pipe 14 Drain Hose Outdoor Unit Air outlet Air inlet 1 2 5 4 3 6 7 Air outl...

Page 7: ...system to prevent overflow INTELLIGENT PRE HEATING U Match Systems guards against the annoying cool air blown into the room in heating mode The system constantly monitors the discharge air temperatur...

Page 8: ...f airflow in the room by moving the louvers up or down FRESH AIR INTAKE The Ceiling Cassette has a ventilation air knockout that allows a 4 inch flex duct connection and a field supplied duct booster...

Page 9: ...a pre determined amount of time after the unit is turned off cooling or dry modes to ensure that additional moisture is removed from coil FAHRENHEIT F CELSIUS C The remote controller can be set to dis...

Page 10: ...k Button 9 Timer ON Button 10 X Fan Button 11 Temp Button 12 Timer OFF Button 13 Turbo Button 14 Sleep Button 15 Light Button 1 2 4 6 8 10 13 3 5 7 9 11 14 12 15 Auto Mode Cool Mode Dry Mode Fan Mode...

Page 11: ...on after a stop the compressor will not start for 3 minutes due to the inherent protection against frequent compressor cycling OPERATION OF WIRELESS REMOTE CONTROLLER REMOTE CONTROLLER OPERATIONS The...

Page 12: ...AN ONLY To circulate air without heating or cooling Use Fan Speed button to select speed from low to high DRY Select DRY MODE to increase moisture removal during warm humid conditions In Dry mode the...

Page 13: ...played for only 5 seconds before reverting back to displaying room setpoint OPERATION OF WIRELESS REMOTE CONTROLLER TIMER ON MODE The Ceiling Cassette unit can be programmed to automatically turn ON a...

Page 14: ...old at this setpoint until Sleep Mode is cancelled If setpoint is 86 unit will run at this setpoint for 7 hours then reduce setpoint by 2 and hold at this setpoint until Sleep Mode is cancelled In Hea...

Page 15: ...rt two newAAA 1 5V dry batteries using correct polarity Reattach back cover NOTE If the remote controller will not be used for a long time remove batteries to prevent leakage damage Be sure to aim the...

Page 16: ...n off power and disconnect from indoor and outdoor units before cleaning Failure to do so could cause electric shock DECORATIVE GRILLE CLEANING Wash the decorative grille using warm water and mild det...

Page 17: ...light or direct heat to dry 2 Reinsert the air filter into filter door careful to align properly 3 Close secure filter door Replace the screw Re install grille assembly For the 18 and 48K cassette uni...

Page 18: ...normal for the system to emit a slight fog or water vapor when cooling extremely humid warm air Solution The fog or water vapor will disappear as the system cools and dehumidifies the room space Caus...

Page 19: ...for assistance In the meantime use the optionalWiredTether Controller if available Cause There are a number of system functions that will prevent air flow Solution Check for the following In heat mode...

Page 20: ...matically Switch off the unit or re energize the unit after cutting off power to eliminate this malfunction If indoor unit detects the condensate overflow switch warning for 8 sec successively the sys...

Page 21: ...ature is higher than protective temp value the unit will report overload protection The unit will restart operation after evaporator temperature is lower than the protective temp value and the compres...

Page 22: ...up to 15 harder 5 Rearrange the room Furniture that obstructs airflow means you could be heating and cooling the back of a chair or the front of a sofa instead of the actual living space Remove or rea...

Page 23: ...OES NOT COVER 1 Labor or other costs incurred for diagnosing repairing removing installing shipping servicing or handling of either defective parts or replacement parts or new units 2 Normal maintenan...

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